Isak i-ieer



(No Model.)

2 Sheets-Sheet 1.

I. HEER.

LooM.

Patented Nov. l0, 1896.

(No Model.) 2 Sheets-Sheet 2.

I.. HEER.

LooM.

No.. 571,192. l Patented Nov. 10, 1896.

ag 'M11-11111111111211111111 UNITED STATES PATENT OEEicE.

ISAK HEER, AOF ZURICH, SVVI'IZERLAND.

LOOIVI.

SPECIFICATION forming part of Letters Patent No. 571,192, dated November10, 1896. i

Application led AJuly Z0, 1894. Serial No. 518,151. (No model.) Patentedin Switzerland December 28, 1893, No. 7,327; in France July 2, 1894, No.239,344, and in England .Tuly 6,1894,No. 13,107.

To 1f/ZZ whom it may concer-n.-

Be it known that I, ISAE HEER, a citizen of Switzerland, residing atZurich, Switzerland, have invented certain new and useful 5 Improvementsin Looms, of which the following is a specification.

Patents have been granted for this invention in Switzerland, No. 7,327,dated December 2S, 1893; in France, No. 239,344, dated July 2, 1894, andin England, No. 13,107, dated July 6, 1894.

My invention relates to improvements in weaving-looms; and it consistsof a toothed or rack-and-pinion-operated shuttle of rectangular cross-sectional shape, of shuttleboxes fitted to receive and to guide thesaid shuttles, and of a particular form of stopmotion -for stopping theloom when the shoot or weft thread has been broken or consumed.

The said improvements are specially designed for application toribbon-looms.

Such being the nature and object of my said invention, the following isa complete description of same, reference being had to the accompanyingdrawings, in which- Figure 1 is a front elevation of a portion of theloom-batten and showing two shuttleboxes. Fig. 2 is a plan of Fig. 1.Fig. 3 is a cross-section online x, Fig. l. Fig. 4 is a front view ofthe shuttle. y Figs. 5 and 6 are plans of the same. Fig. 7 is a rearview.

The known toothed or rack-and-pinion-operated shuttles are guided bymeans of groove and feather in such a way that they cannot be removedfrom their boxes when their interior appliances have to be manipulated.rlhese appliances therefore must be manipulated without removing themfrom the boxes.

The toothed shuttle of rectangular or angularcross-sectional shapeforming one part of my invention presents a cavity which is about threetimes larger than that presented by the common toothed shuttles, so thatall the appliances necessary to a proper operation of the shuttle may beplaced therein. According to the cross=sectional shape of the toothedshuttle the cells of the shuttle-boxes also are ofrectangularcross-sectional shape. In order to manipulate the interiorappliances 5o of the shuttle, namely, weft-tension device,

the stop-motion, dac. the shuttle has to be removed from the box, forWhichpurpose I provide the face of the box with a door, which serveswhen closed as a guide for the shuttle. These improvements considerablyincrease 5 5 the output of the loom.

` A, Figs. 1 to 7, is the toothed shuttle of angular cross sectionalshape, and B are the shuttle-boxes, the cells b of which also have anangular cross-sectional shape, according 6o to the shuttle. The numberof the cells arranged in one box may vary, conforming to the number ofthe shuttles to be guided.V Each box has toothed wheels on its rear sideextending through the wall b to ,engage in the 6 5 toothed shuttles. Inorder to be enabled to put in and to take out the shuttle, every box isiitted with a small door D, consisting of the bars d d and pivoted onthe rod E. This door is kept closed by means of the spring` 7o catchcl2. v The bars d guide the shuttles when the door is closed. Theseguide-bars extend transversely of the bars d', as shown in Figs.

1 and 3.

The shuttle placed in the box is not visible 75 during the act ofweaving, so that the Weaver cannot become aware of the rupture or of theconsumption of the weft. In consequence thereof it is absolutelynecessary that the shuttles be provided with a stop-motion which 8oautomatically stops the loom when the weft is broken or consumed.

The stop-motion placed in the cavity of the shuttle and forming part ofmy inventionconsists of two levers F F, Figs. 4, 5, and 6, con- 85nected with each other by means of the link f and movable in horizontaldirection. These levers are turned inwardly by the tension of the weftS, and when the latter has been broken or consumed turned outwardly by9o the spring G.. In the first event the ends of the levers F F are keptin the cavity of the shuttle A. (See Fig. 5.) In the latter event theseends project out of the shuttle. (See Fig. 6.) The lever F is providedwith an 95 eye-screw f', through which passes the weftthread S, thusenabling an action of the wefttension upon the levers F F to hold thelevers retracted.

In order that the levers F F' may effect the roo stopping of the loomwhen the weft-thread S has been broken or consumed, a vertical shaft H,Figs. l, 2, and 3, provided with fliers h, is placed at the face ofevery box B in such a 4 manner that the fliers h comev into the reach ofthe levers F F. On the lower end of the shaft H is fixed the lever I,Fig. 3, the crankpin of which engages in a slot of the arm e, fixed tothe rod E. At the moment when a shuttle enters a box from the right handto the left hand the lever F acts on a flier h, supposing that theweft-thread has been broken or consumed, and at the moment when ashuttle enters a box from the left hand to the right hand the lever Facts on a flier h. In both events the shaft H is turned and the rod Eaxially shifted. By means of the grooved disk e and the rod c2 the rod Eacts on a lever e3, having1 a V-shaped end. This end, turned to theright or to the left hand, presses the upper arm of the hook-lever Kforwardly, (see Fig. 2,) so that the hook of this lever releases thestop-lever L, which follows the pull of the spring Z, and by means ofsuitable known appliances shifts the fork M to the running-pulley,thereby stopping the loom.

The oscillating shaft H forms an essential portion of my invention. Therod E and the other organs connected therewith, however, are notessential and may be replaced by other suitable appliances.

The levers are under tension of the spring O acting on one of them andthe weft-thread engages the eye N on the lever F.

Having now particularly described and ascertained the nature and objectof the said invention and in what manner the same is to beemployed, Ideclare that what I claim is I. In combination, the shuttle, the pair ofstop-levers pivotally carried thereby, one of said levers having an eyefor the thread, a spring connected with said lever and a connection fromthis lever to the other lever of the pair whereby the tension of thespring and weft applied to one lever will be transmitted to the other,said connection consisting of a link, substantially as described.

2. In combination, in a loom, the shuttle* boxes, the shuttles therein,the vertical shaft H having the flier, the horizontal shaft E connectedto the shaft H to be moved longitudinally thereby, the levers on theshuttle arranged to be held retracted by the tension of the weft, thespring in the shuttle for forcing said levers outwardly when theweft-thread fails, and connections from the shaft E to a stop-motion,substantially as described.

In witness whereof I have hereunto set my hand in presence of twoWitnesses.

ISAK HEER. Vitnesses:

H. LACHARS, HERMANN KiRcHHoFER.

